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-rw-r--r--fs/fcntl.c2
-rw-r--r--fs/ioctl.c2
-rw-r--r--fs/pipe.c16
3 files changed, 6 insertions, 14 deletions
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 431bb6459273..d865ca66ccba 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -184,6 +184,8 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
error = filp->f_op->fasync(fd, filp, (arg & FASYNC) != 0);
if (error < 0)
goto out;
+ if (error > 0)
+ error = 0;
}
spin_lock(&filp->f_lock);
filp->f_flags = (arg & SETFL_MASK) | (filp->f_flags & ~SETFL_MASK);
diff --git a/fs/ioctl.c b/fs/ioctl.c
index e8e89edba576..ac2d47e43926 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -432,7 +432,7 @@ static int ioctl_fioasync(unsigned int fd, struct file *filp,
else
error = -ENOTTY;
}
- return error;
+ return error < 0 ? error : 0;
}
static int ioctl_fsfreeze(struct file *filp)
diff --git a/fs/pipe.c b/fs/pipe.c
index 14f502b89cf5..94ad15967cf9 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -667,10 +667,7 @@ pipe_read_fasync(int fd, struct file *filp, int on)
retval = fasync_helper(fd, filp, on, &inode->i_pipe->fasync_readers);
mutex_unlock(&inode->i_mutex);
- if (retval < 0)
- return retval;
-
- return 0;
+ return retval;
}
@@ -684,10 +681,7 @@ pipe_write_fasync(int fd, struct file *filp, int on)
retval = fasync_helper(fd, filp, on, &inode->i_pipe->fasync_writers);
mutex_unlock(&inode->i_mutex);
- if (retval < 0)
- return retval;
-
- return 0;
+ return retval;
}
@@ -706,11 +700,7 @@ pipe_rdwr_fasync(int fd, struct file *filp, int on)
fasync_helper(-1, filp, 0, &pipe->fasync_readers);
}
mutex_unlock(&inode->i_mutex);
-
- if (retval < 0)
- return retval;
-
- return 0;
+ return retval;
}